Medical device for delivering a therapeutic substance and method therefor
US6399144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2001 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Feb 12, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N5/1002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device useful for localized delivery of a therapeutic material is provided. The device includes a structure including a porous material; and a water-insoluble salt of a therapeutic material dispersed in the porous material. The water-insoluble salt is formed by contacting an aqueous solution of a therapeutic salt with a heavy metal water-soluble salt dispersed throughout a substantial portion of the porous material. The porous material can be made of a polymer other than fibrin with fibrin incorporated into the pores, which can be the only layer of polymeric material on the medical device (e.g., stent). A new method for preparing a porous polymer material on a medical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.